BIOATIVIDADE DE Solanum melongena L. E Capsicum annuum L. SOBRE Callosobruchus maculatus (COLEOPTERA: BRUCHIDAE)

Freire, Glauciene Ferreira; Leite, Delzuite Teles; Pereira, Rafaela Alves; Melo, Bruno Adelino de; Silva, Juliana Ferreira da; Maracajá, Patrício Borges

doi:10.15446/abc.v21n1.45775

Cited by 5 publications

(6 citation statements)

References 13 publications

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“…The powder of the leaves from Solanum melongena and Capsicum annuum promoted the death of all weevils in 120 hours (5 days). The researches look for products that cause insect mortality as soon as possible so that population decrease occurs and hinders oviposition [20].…”

Section: Resultsmentioning

confidence: 99%

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Effect of Neem Powder (Azadirachta indica A. Juss) on the Control of Cowpea Weevils [Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)] in Cowpea Beans

Neto

Andrade

Costa

et al. 2019

JEAI

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The cowpea weevils [Callosobruchus maculatus (F.)] are the primary pest affecting grain and seeds of stored cowpea beans. The control of this insect comprises expensive methods such as fumigation or spraying of chemicals, which are unfeasible for small farmers. The use of insecticidal plants, such as the neem tree (Azadirachta indica), may stand out as a cheaper alternative. This study evaluates the bioactivity of neem powder on the control of weevils in cowpea seeds. We tested four types of powders according to the part of the plant from which it originated: leaves, fruits, bark, and the mixture of these three parts in the same proportion. The bioassay of the action spectrum and the Sousa Neto et al.; JEAI, 30(2): 1-7, 2019; Article no.JEAI.46051 2 insecticidal effects were assessed using four doses of each type of powder: 0.25%, 0.50%, 0.75%, and 1.00% per 20g of beans. The fruit powder repelled weevils at the lower doses used, while leaf powder, bark, and the mixture were neutral. Although neem powder reduced the survival of insects, the reduction was slow, showing mild toxicity. Neem powder may be an alternative for the control of cowpea weevils in storage units. However, the efficiency of the control depends on the part of the plant and dosage used. Original Research Article

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Section: Resultsmentioning

confidence: 99%

“…Cowpea weevils used in the bioassays were reared in the Laboratory of Entomology following the methodology of Freire et al [20]. The insects were kept in glass cages with a capacity of 1.5 liters (21.0 x 10.5 x 10.5 cm), top coated with anti aphid screen, containing cowpea 'Canapu' seeds.…”

Section: Methodsmentioning

confidence: 99%

Effect of Neem Powder (Azadirachta indica A. Juss) on the Control of Cowpea Weevils [Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)] in Cowpea Beans

Neto

Andrade

Costa

et al. 2019

JEAI

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“…Outro método interessante no controle de insetos de grãos armazenados é a utilização do pó da folha, Freire et al (2016) testando a repelência no controle de adultos de C. maculatus utilizando apenas 10% do pó de folhas de Solanum melongena L. (berinjela) e Capsicum annuum L. (pimenta) [100*(massa de pó/massa de grãos)], obteve 89,4% e 86,16% de repelência dos insetos, respectivamente, considerado dados eficientes. Podendo ser uma alternativa mais acessível, principalmente para pequenos produtores, que no nosso caso, C. blanchetianus por ser abundantes na caatinga, seria um método também viável para os sertanejos que tem que lidar com esses insetos pragas.…”

Section: Discussionunclassified

BIOATIVIDADE DO ÓLEO ESSENCIAL DE Croton blanchetianus Baill (Euphorbiaceae) SOBRE Callosobruchus maculatus Fabricius, 1775 (Coleoptera: Chrysomelidae)

Silva

Oliveira

Matos

et al. 2020

NAT

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O feijão-caupi, Vigna unguiculata, possui um importante papel na alimentação. No entanto, essa cultura ainda sofre grandes perdas devido ao ataque de insetos-praga, sendo fundamental o desenvolvimento de métodos de manejo para garantir o controle de Callosobruchus maculatus (Coleoptera: Chrysomelidae). Foi avaliada a toxicidade, por contato, a taxa de oviposição e emergência de C. maculatus em grãos de feijão-caupi tratados com o óleo essencial de Croton blanchetianus e o efeito residual em diferentes períodos de armazenamento, sendo, ainda, determinadas as concentrações letais (CL50 e CL90). O teste de toxicidade por contato e taxas de oviposição e emergência de C. maculatus foi realizado em placas de Petri, utilizando 6 concentrações (0; 2.5; 5; 7.5; 10 e 12.5 μL/20g). No teste residual, os grãos foram submetidos a diferentes períodos de armazenamento (0, 30 e 60 dias). Os resultados mostraram que o óleo essencial de C. blanchetianus apresentou toxicidade por contato sobre C. maculatus. Observou-se que as concentrações letais foram consideradas baixas. Este óleo também reduziu a oviposição e emergência de adultos. Por outro lado, durante diferentes períodos de armazenamento o óleo teve sua ação diminuída, apresentando potencial para ser utilizado em programas de manejo de C. maculatus em feijão armazenado.

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“…In the face of the many negative effects caused by the indiscriminate use of such products to the environment and health, several studies have been performed to find alternative means to reduce the use of these chemicals (ADENEKAN;OKPEZE;OGUNTADE, 2013;CAMPOS et al, 2014;ALVES et al, 2015). Among the different possibilities, bioactive products derived from the secondary metabolism of plants stands out as they are selective and present low persistence in the environment (SANTOS et al, 2012;FREIRE et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Use of Vegetable Oils to Control Bean Weevil Development on Cowpea Grains

et al. 2019

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Callosobruchus maculatus, commonly known as cowpea weevil, is the main pest affecting stored cowpea Vigna unguiculata. The damage resulting from the penetration and feeding of cowpea weevil larvae within the grains or seeds of V. unguiculata leads to weight loss, reduction of germination power and nutritional value and commercial depreciation of this plant. The objective of this work was to evaluate the insecticidal activity and repellency of vegetable oils extracted from fennel, citronella, neem and 'moringa' against C. maculatus adults. To evaluate the insecticidal activity, we placed 20 adult insects in plastic containers lined with filter paper impregnated with different doses (0.0 x 106, 5.0 x 106, 1.0 x 105, 1.5 x 105, 2.0 x 105, 3.05, 4.0 x 105 and 5.0 x 105 L) of each vegetable oil. The number of insects was analyzed 24 hours later. To evaluate the repellency activity, we used an arena formed by five circular plastic containers with the central container interconnected symmetrically to the others by plastic tubes arranged diagonally. Samples of 30 g of cowpea were impregnated with different doses (5.0 x 106, 1.0 x 105, 1.5 x 105 and 2.0 x 105 L) of each vegetable oil. We released 50 adults of C. maculatus in the central container and counted the number of insects per container 24 hours later. Citronella and fennel oils at a dose of 3.0 x 105 L demonstrated a higher insecticidal effect on C. maculatus. However, citronella oil presented the best repellent action.

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BIOATIVIDADE DE Solanum melongena L. E Capsicum annuum L. SOBRE Callosobruchus maculatus (COLEOPTERA: BRUCHIDAE)

Cited by 5 publications

References 13 publications

Effect of Neem Powder (Azadirachta indica A. Juss) on the Control of Cowpea Weevils [Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)] in Cowpea Beans

Effect of Neem Powder (Azadirachta indica A. Juss) on the Control of Cowpea Weevils [Callosobruchus maculatus (F.) (Coleoptera: Bruchidae)] in Cowpea Beans

BIOATIVIDADE DO ÓLEO ESSENCIAL DE Croton blanchetianus Baill (Euphorbiaceae) SOBRE Callosobruchus maculatus Fabricius, 1775 (Coleoptera: Chrysomelidae)

Use of Vegetable Oils to Control Bean Weevil Development on Cowpea Grains

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